The hub for the effort is this page, which greets visitors with the guilt-trip-inducing message, “It’s time to help each other.” Anyone with a place to stay, be it spare bedroom or humble couch, can list it for free.

In a statement, the company told Betabeat:

This morning, we announced that Airbnb hosts in Hurricane Sandy–affected areas can now offer their space for free. People who require a temporary place to stay can quickly find a free space via our list of free, available housing for Sandy-affected areas. If you live close to an affected area and have an extra house, an extra room, or even a spare couch, we encourage you to sign up to help.

The page says 100-plus people have already opened their homes. That won’t put much of a dent in the housing crisis, but we suppose it’s a start.